import sys
sys.setrecursionlimit(5*10**5)
input = sys.stdin.readline
from collections import defaultdict, deque, Counter
from heapq import heappop, heappush
from bisect import bisect_left, bisect_right
from math import gcd

def fact(n):
    l = []
    tmp = n
    for i in range(2,int(pow(n,0.5))+1):
        if tmp % i == 0:
            cnt = 0
            while tmp % i == 0:
                cnt += 1
                tmp //= i
            l.append([i,cnt])
    if tmp != 1:
        l.append([tmp,1])
    return l

n = int(input())
if len(fact(n)) <= 2:
    print('Yes')
else:
    print('No')